Encyclopedia of Astrobiology

Living Edition
| Editors: Muriel Gargaud, William M. Irvine, Ricardo Amils, Henderson James Cleaves, Daniele Pinti, José Cernicharo Quintanilla, Michel Viso

Titius-Bode Law

Living reference work entry
DOI: https://doi.org/10.1007/978-3-642-27833-4_1596-2

Definition

The Titius-Bode law is the statement that the semimajor axes of planetary orbits in the solar system follow approximately a geometric progression when going from the innermost to the outermost planets. There is no real physical explanation for this law, which stems from observation only and was first introduced by the German astronomers Johann Daniel Titius and Johann Elert Bode around 1770.

The formula for the semimajor axisa reads: \( a=\left(0.4+0.3\times {2}^n\right) \)

Keywords

Bioorganic Chemistry Solar System Semimajor Axis Physical Explanation Geometric Progression 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
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Copyright information

© Springer-Verlag Berlin Heidelberg 2014

Authors and Affiliations

  1. 1.LESIAObservatoire Paris-Site de MeudonMeudonFrance